Inventory Costing Methods$-$Periodic Method

Merritt Company uses the periodic inventory system. The following May data are for an item in Merritt's inventory:

$\backslash$table$[[$May $1,$Beginning inventory,$150,$units @$,$$$30,$per unit$],[12,$Purchased,$100,$units @$,$$$35,$per unit$],[16,$Sold,$180,$units.,,$],[24,$Purchased,$170,$units @$,$$$40,$per unit$]]$

Calculate the cost of goods sold for May and ending inventory at May $31$ using $($a$)$ first$-$in$,$ first$-$out, $($b$)$ last$-$in$,$ first$-$out, and $($c$)$ the weighted$-$average cost methods. Do not round until your final answers. Round your final answers to the nearest dollar.

$\backslash$table$[[$A$.,$First$-$in$,$ First$-$out:,$],[,$Ending Inventory,$